Jamiroquai was set to perform at the La Halle Tony Garnier in Lyon, France last night, but the show was canceled when at the last minute, a stagehand lost his balance and fell 50 feet to his death from a gantry.

Frontman Jay Kay said today:

"The band was shocked and saddened when told the news, and out of respect immediately felt the right decision was to cancel the show. A police investigation is taking place."

Absolutely heartwrenching, and so incredibly sad.

Our thoughts are with the man's family, friends, and loved ones during this difficult time.

THIS IS NO "VIRTUAL INSANITY". THIS IS VIRTUAL SADNESS. MY CONDOLENSCES MUST GO OUT TO THE FAMILY WHO LOST SOMEONE IN THAT FREAK ACCIDENT AT THE JAMIROQUAI CONCERT. THANKS, JAY KAY, FOR CANCELLING THE SHOW. MUCH RESPECT.

Zayn previewed the duet by posting a black and white pic of himself with Swifty on his Instagram -- but hey, she is bestiez with his girlfriend Gigi Hadid, so it wouldn't be unusual that they hang out... But collab?!